code: def test_copy():
      style = Style(color="red", bgcolor="black", italic=True)
      assert style == style.copy()
      assert style is not style.copy()
  
imports: import pytest
  from rich import errors
  from rich.color import Color, ColorSystem, ColorType
  from rich.style import Style, StyleStack
label_desc: Use image node_id 14 for calling a global function with example usage: test_copy() without return types